The LEGO House is the company’s upcoming tourist attraction in Billund, Denmark. Sariel got a chance to step inside the building ahead of its 9/28/17 public opening. Highlights include three 10ft tall LEGO dinosaurs, a huge play room, and a gallery of fan made creations.

LEGO expert Sariel shows off one of his neatest creations yet, a motorized mechanical zoetrope, which displays an animation when you look through the slits at the posed minifigs as they whiz by inside. A cool spin on a classic moving picture device.

We’ve featured a number of Pawel “Sariel” Kmiec’s incredible LEGO Technic builds. Now learn from the best with this 424-page guide which takes you from basic building principles up through sturdy and complex mechanisms so you can make your own wonderful machines.

One-man LEGO Technic factory Sariel tops himself yet again with this badass model of the A39 Tortoise, a British World War II heavy assault tank prototype. Its drivetrain, cannon, turret and machine gun are controlled with a DualShock 4 via two SBricks.

LEGO enthusiast Sariel’s latest remote-controlled creation is based on the Dakar rally configuration of the Tatra T815 truck. The 12″ toy has a double wishbone suspension in front, a live axle at the rear and has a top speed of 7mph.

LEGO master builder Sariel used Technic components and the SBrick to make an automated train cargo loader and rotary dumper. The dumper requires no human input, while the loader goes to work at the press of a button and can also be controlled manually.

LEGO master Sariel made this badass model of the Defender 90. It moves like a turtle even in fourth gear, but yeah, it has a fourth gear. It also has 4×4 drive, a working winch, locking differentials, and can be controlled from up to 160ft away thanks to the SBrick module.

LEGO brick builder Sariel was recently invited to the company’s headquarters in Billund, Denmark. Watch his video diary for a rare glimpse at the LEGO factory, a jaw-dropping room containing every LEGO set ever released and more. The tour starts at 2:34.